| 兰州高坪湿陷性黄土地基处理方法分析 |
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| 引用本文： | 胡燕妮,米海珍.兰州高坪湿陷性黄土地基处理方法分析[J].西北地震学报,2011,33(Z1). |
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| 作者姓名： | 胡燕妮 米海珍 |
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| 作者单位： | 兰州理工大学土木工程学院,甘肃兰州,730050 |
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| 基金项目： | 甘肃省自然基金项目(3ZS042-B25-031) |
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| 摘 要： | 根据兰州地区3处大厚度高坪黄土的天然密度、含水量、土粒比重等物理性质指标沿深度变化的统计规律,分析了计算值-天然孔隙比随这些指标的变化规律,得出黄土天然孔隙比简化的计算公式。藉此分析强夯法、挤密桩法等地基处理方法的合理设计参数:对于强夯法,平均夯沉量可以作为初步设计参数和质量检测指标;对于挤密桩法,确定了加固深度和处理后的孔隙比,即可确定桩间距和桩径的比值。
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| 关 键 词： | 兰州 高平地区 黄土 孔隙比 强夯法 挤密桩法 |
Analysis of Collapse Loess Foundation Treatment on High Fluvial Terrace in Lanzhou |
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| HU Yan-ni,MI Hai-zhen.Analysis of Collapse Loess Foundation Treatment on High Fluvial Terrace in Lanzhou[J].Northwestern Seismological Journal,2011,33(Z1). |
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| Authors: | HU Yan-ni MI Hai-zhen |
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| Institution: | HU Yan-ni,MI Hai-zhen(School of Civil Engineering of Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | Based on the statistic information of physical feature indexes of mass density,water content and specific gravity of solids of loess along different depth on three high fluvial terraces in Lanzhou area,the in-place void ratios of loess varying with basic physical indexes are analyzed to obtain a calculating formula.In addition,reasonable parameters of foundation treatment are analyzed on dynamic compaction and compaction pile method.For dynamic compaction method,average consolidation induced by dynamic comp... |
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| Keywords: | Lanzhou area High fluvial terrace area Loess In-place void ratio Dynamic compaction method Compaction pile method |
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